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DV (from Digital Video) is a family of codecs and tape formats used for storing digital video, launched in 1995 by a consortium of video camera manufacturers led by Sony and Panasonic. It includes the recording or cassette formats DV, MiniDV, HDV , DVCAM, DVCPro, DVCPro50, DVCProHD, Digital8 , and Digital-S .
With lossless digital zoom, described by Panasonic as "Intelligent Zoom", zoom levels of up to 25 times and 40 times can be achieved at 2160p and 1080p respectively. HDR video can be captured at up to 1080p (Full HD). It also is equipped with an additional 5.27 Megapixel rotatable sub camera attached to the tiltable screen. [46]
HDV 720p format allows recording high definition video (HDV-HD) as well as progressive-scan standard definition video (HDV-SD). [7] HDV-HD closely matches broadcast 720p progressive scan video standard in terms of scanning type, frame size, aspect ratio and data rate. Earlier HDV 720p camcorders could shoot only at 24, 25 and 30 frames per second.
m-720p (or mini 720p) a compressed version of a 720p and usually sized at around 2–3 GB. Currently uncommon. Movie piracy sites such as RARBG and YTS has its own compressed versions of the movies released on these sites, tagged as 1080p. 720p usually around 4–7 GB and is the most downloaded form of BDRip. m-1080p (or mini 1080p)
However the MiniDVD format has been mostly used as recordable discs in DVD-based camcorders during the 2000s; a single layer disc can record up to 30 minutes of standard definition video. [2] A number of movies and TV shows have also been released on the format in the mid-2000s, usually targeting children using low-cost small players.
The product comes bundled with a 4 GB Memory Stick Duo that holds 30 mins of HD video. Sony HDR-CX7 weighs 15 ounces with the supplied battery and can record nearly one hour of full HD 1080 video on an 8-GB memory. It can record longer videos at lower resolution or quality. This handycam features a crash-proof recording system.
HD DVD-RW is the rewritable disc variant of HD DVD with equal storage capacity to an HD DVD-R. The primary advantage of HD DVD-RW over HD DVD-R is the ability to erase and rewrite to an HD DVD-RW disc, up to about 1,000 times before needing replacement, making them comparable with the CD-RW and DVD-RW standards.
As a final effort for VHS, the D-VHS system had significant advantages as a highly versatile domestic recorder (the other tape-based formats are DV and Digital8, which never gained any traction except as camcorder media), but given the wholesale move to DVD and then hard disk drive (HDD) recording, the format failed to make any headway into the video market.